miss Mellor dines 8.11.1803 (& Smith) / 22.11.1803 P(hebe) G(odwin) dines adv E Mellor / 15.12.1803 miss Mellor at theatre / 26.12.1803 mrs mellor & G(race) M(ary) C(ooper) dine / 5.7.1804 mrs Mellor calls (from sa fille)
Perhaps miss Mellor (and E Mellor) was Elizabeth Harriet Mellor who married Joseph Herring of Kensington at St Martin i t Fields 20.5.1809. She was bapt at St Botolph Bishopsgate 1785 dau of Samuel and Catherine Mellor (nee Comerford) who were married at St George i t East in 1782, and she died 1868 age 83 Carisbrooke Isle of Wight. Her aunt Sarah married John Mason Neale (qv, and note the Hodges connection) in 1788 and her father Samuel of Princes St was buried at St Geo i t East age 41 in 1802. Mrs Mellor was perhaps the Catherine Mellor widow who married William Johnson bach at Stepney in 1824, when she would have been in her sixties. Mrs Herring's dau Josephine born Kensington was still living with her mother in the 1851 and 1861 censuses at Carisbrooke. A Samuel Mellor was clerk to Willaim Clarkson of Doctors Commons in 1787 (Old Bailey Online)

Work notes: 
Mellor & Pratt men's mercers 12 Lawrence La Cheapside 1791. Mrs Mellor Clapham subscr 1797 to Sarah Instone's Poems. Miss Mellor of Manchester subscr 1822 to Henry Turner (unitarian). Mary Mellor of Lambeth widow will PCC 1821 mentioned dau Mary Jane wife of Richard Chase Sidney of Mortimer St Marylebone (they married 24.6.1806 St Geo Han Sq when she was spinster of Clapham), friend Anne Margaret Felton spinster of Montpelier South Lambeth, execs John Flaxman of Buckingham St Fitzroy Sq & John Hardy of Tavistock st, Bedford Sq. Mary Jane Mellor was bapt 14.3.1768 St Giles Cripplegat d of Thomas & Mary Mellor. Thomas Mellor was an attorney apprenticed to William Myddleton of the Inner Temple in 1759. Mary Mellor of Chelsea widow will PCC 1824 mentioned no daughters but a sister Catherine Tidsley widow, niece Alice wife of William sears, nephew John Knapp of Fleet St, Mrs Shaw of Ebury St Chelsea, Barbara wife of William oxley of Ebury Sq, friend Mrs Bargeman widow of Grosvenor Row Chelsea, friend Mr Boswell, friend Mrs Woodham and her two daughters. They don't seem to have been close relatives of Godwin's friend Mrs Knapp. Joseph Mellor = 7.12.1766 at Islington Mary dau of Kezia Abington widow, witness Alice Abington. Thomas Knapp = 12.8.1770 Alice Abington of Islington at St Michael Cornhill, their children Alice bapt 1773 and John Abington bapt 1774 at St Geo Southwark. William Sears = 18.7.1802 Alice Knapp at Paddington St James.